77730034510472 has 16 divisors (see below), whose sum is σ = 146586264505740. Its totient is φ = 38640363975616.

The previous prime is 77730034510459. The next prime is 77730034510483. The reversal of 77730034510472 is 27401543003777.

It can be written as a sum of positive squares in 2 ways, for example, as 77555956975396 + 174077535076 = 8806586^2 + 417226^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 77730034510472.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28081658483 + ... + 28081661250.

Almost surely, 2^{77730034510472} is an apocalyptic number.

It is an amenable number.

77730034510472 is a deficient number, since it is larger than the sum of its proper divisors (68856229995268).

77730034510472 is a wasteful number, since it uses less digits than its factorization.

77730034510472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56163319912 (or 56163319908 counting only the distinct ones).

The product of its (nonzero) digits is 3457440, while the sum is 50.

The spelling of 77730034510472 in words is "seventy-seven trillion, seven hundred thirty billion, thirty-four million, five hundred ten thousand, four hundred seventy-two".